Dishwasher accessory



FIG. 1 is a front perspective view of a dishwasher accessory according to my new ornamental design;

FIG. 2 is a front view thereof, with the rear view being identical;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof with the right side view thereof being a minor image thereof; and,

FIG. 6 is a perspective view thereof in a position where the dishwasher accessory is assembled or attached to a dishwasher rack.

The broken lines show surrounding structure or environment and do not form part of the claimed design. 

CLAIM The ornamental design for a dishwasher accessory, as shown and described. 